Improvement in miners  lamps



- W. SEYBOLD..

Miner's Lamp Patented June 8, 1869.

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WILLIAM SEYBOLD, OF MCKEESPORT, PENNSYLVANIA, ASSlGNOR TO HIMSELF AND SAMUEL H. HOFFMAN, OF SAME PLACE.

Letters Patent No. 90,963, dated June 8, 1869.

mPROVEIMENI IN MINI-IRS LAMPS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be itknown that I, WILLIAM SEYBOLD, of M cKeesport, in the county of Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Miners Lamp; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawing, making a part of this specification, in which Figure 1 is a side elevation of my improved miners lamp, and

Figure 2 is a vertical section of .the'same.

Like letters of reference indicate like parts in each.

The ordinary miners lamp consists of a small can, with a wick-tube fastened near its bottom, and extending upward to the level of the top of the lamp;

The lamp is fastened to the miners cap by a hook in I the can. In this lamp, lard, or other expensive oils are used. The use of light, cheap oils, such as petroleum, fluid, &c., in this lamp, is attended with dangerous results, for the oil in the lamp, being constantly agitated by the movements of the minor, works its way out aroundthe edge of .the lid, and through the wick-tube, dripping from the latter, when the miners head is bent down, in small flaming drops. In this way the outer surface of the lamp becomes wet with oil, which frequently takes fire, and sometimes the lamp explodes.

This danger and inconvenience is wholly obviated by my improvement, the nature of which consists in the construction of a miners lamp having a wick-tube extending from the place where it is attached or fastened to the can, or body of the lamp, up through the interior, to near the top of the lamp, and the outer end of the wick-tube extended above the level of the lid of the lamp, for the purpose of burning, without danger of explosion or accident from leakage, the light oils now in use.

To enable others skilled in the'art to make and use my invention, I will proceed to describe its construction and mannerof use.

In the drawinga is the body, or chamber of the lamp, and

b is the wick-tube, which is curved where it enters the chamber of the lamp a, at any convenient point near the bottom, and extends upwards, both externally and internally, the external portion 1) being carried up above the level of the top of the lamp, and

,the inner portion, 11, reaching nearly to the cover, or

lid 0.

Onthe outer extremity of the wick-tube I) is a sleeve, d.

e is the book by which the lamp is fastened to the miners cap.

f is cotton, or other light fibrous material in the inside of the can a.

g is the feeding-wick.

h is the burning-wick.

I elongate the inner end b of the wick-tube b, and

extend it upwards inside the can a to near the top, and extend the outer end of the wick-tube b above the level of the lid 0, to prevent the escape of the oil through the wick-tube b, and, by placing'enough cotton, or other light fibrous material, in the can a to absorb the oil, I effectually stop all leakage through the wick-tube b and around the edge of the lid 0.

- The filling f of cotton, or other fibrous material, absorbs the oil or burning-fluid, and prevents its spilling out, but does not obstruct its passage through the feeding-wick g to the burning-wick h, as the filling lies closely in contact with that portion of the feed-. ing-wick g which extends down from the top of the inner portion 72 of the wick-tube to the bottom of the lamp.

Another advantage is, that the wick never requires to be changed, for the cap (1 serves as a cup, in which is placed a small wad of cotton, or burning-wick II, which extends down the wick-tube b to the wick g, which is drawn down the wick-tube a little way, and when the wad or burning-wick It has become calcined, or burned, it is taken out and replaced by a fresh one.

The lid 0 is hinged to the can a, on the side next to the outer end d of the wick-tube b, so that when it is opened, it interposes as a shield between the burning-wick h and the open end of the can a.

I The advantage of this is, that the lamp can be filled, when burning, with perfect safety.

As by this lamp the pretroleum and other light oils can be used, a very great saving is effected to the miner. It burns with perfect safety in whatever position it is placed, as well in an inverted as in an upright position.

, The lamp may be made of tin or any other suitable material.

I do not wish to confine myself to the particular size and shape shown, but desire to cover all sizes and shapes to which my improvement can be applied. Having thus described my, improvement,

What I claim as my invention, and desire to secure by Letters Patent, is-- 1.- Extending the wick-tube upwards, within the lamp-chamber, nearly to the top of the lamp, in the manner and for the purpose described.

2. In combination with the interior upward extensionof the wick-tube, extending the exterior portion of the wick-tube above the topof the lamp.

3. The short burning-wick h, inserted into the end of the wick-tube, in combination with the feedingwick g and fibrous filling f, substantially as and for the purposes hereinbefore described.

In testimony whereof, I, the said WILLIAM SEY- BoLD, have hereunto set my hand.

\ W. SEYBOLD.

Witnesses Tnos. B. KERR, JOHN GLENN. 

